Jessica Biel posing for a portrait. (Photo:Reuters)

Jessica Biel is the most dangerous celebrity on the web because online searches for her name lead to spyware and viruses, according to security technology company McAfee Inc.

People searching for Jessica Biel's downloads, screen savers, videos, photos and more, have one out of five chances of encountering websites that damage the computer. The most dangerous celebrities behind Biel are Beyonce, Jennifer Aniston, Tom Brady and Jessica Simpson, McAfee said.

McAfee said Tuesday that cybercriminals use celebrities' names and images to draw in surfers searching to sites overloaded with malware.

Biel overtook Brad Pitt as the most dangerous celebrity to search online, according to McAfee.